2009年11月23日 · Electronic Fuel Injection (EFI) was originally used on Harley Davidson motorcycles beginning in the 1995 production year and currently the Delphi Electronic Fuel Injection system is used on all Harley Davidson models. This Electronic Sequential Port Fuel Injection system was introduced in Harley Davidson Softail motorcycles in 2001,

EFI systems that sense engine load by the use of the throttle or TPS (throttle position sensor) are referred to as an Alpha-N system. EFI systems that sense engine load by the use of a MAP sensor are referred to as a Speed-Density system. Harley-Davidson has used both types of EFI systems on its vehicles.

2009年12月16日 · Tuning the EFI system of a Harley Davidson motorcycle increases the efficiency of the Electronic Fuel Injection system by keeping the fuel mixtures within specific ranges that allow the engine to work best.

2011年12月30日 · Harley-Davidson introduced Electronic Fuel Injection (EFI) as a feature for Softail models in 2001. Obviously that proved successful, because the MoCo slowly rolled out EFI to all models. Today, almost all factory Harleys built in the US are fuel injected.

2024年2月8日 · Harley-Davidson embarked on fuel injection technology exploration in the early 1980s, culminating in the introduction of Electronic Fuel Injection (EFI) in 1995. This milestone was marked by offering EFI as an optional upgrade for the Electra Glide 30th-Anniversary Edition, making it the first model in their lineup to feature this technology.

5 天之前 · Harley-Davidson experimented with electronic fuel injection (EFI) as early as the 1980s, particularly in police models and some special-order bikes. 1995 – First Factory-Installed EFI System: The 1995 FLH touring models (Electra Glide, Road King, etc.) were the first Harley-Davidson motorcycles to offer EFI as an option.

2024年8月16日 · Discover when Harley-Davidson made the crucial switch to fuel injection (EFI) and the numerous benefits it brought to riders. From enhanced fuel efficiency—offering up to 30% savings—to improved throttle response and smoother handling, this article unveils how EFI revolutionized Harley-Davidson motorcycles.

2007年11月29日 · The Harley-Davidson ESPFI system is known as a Speed/Density, Open Loop, Sequential Port Fuel Injection system, that controls both fuel flow, and spark timing. Let's further explain those three terms.

2009年2月24日 · Harley-Davidson’s SE Pro EFI Race Tuner is a sophisticated tuning program with the ability to adjust fuel, ignition, start-up, warm-up, rev limit, and injector size, just to name a few. It also includes a Data Mode, which can record and display real-time vehicle data.

Software packages like Harley’s SE Race Tuner allow you make any change you want to the EFI ECU. You are actually making changes the internal fuel maps for the EFI. It also gives you control over the ignition and knock sensor. This is the only viable upgrade if you are building a race engine or an above average street engine.